[BREAKING CODE] NodeJS polyfills are not included in the latest version of create-react-app

[SmithVyne]

The latest version of create-react-app lacks NodeJS polyfills.
This is a problem because Web3 js depends on some of those polyfiills.

News users of this kit get errors like:

WARNING in ./node_modules/xhr2-cookies/dist/xml-http-request.js
Module Warning (from ./node_modules/source-map-loader/dist/cjs.js):
Failed to parse source map from '/node_modules/xhr2-cookies/xml-http-request.ts' file: Error: ENOENT: no such file or directory, open '/node_modules/xhr2-cookies/xml-http-request.ts'
@ ./node_modules/xhr2-cookies/dist/index.js 11:9-38
@ ./node_modules/web3-providers-http/lib/index.js 27:11-49
@ ./node_modules/web3-core-requestmanager/lib/index.js 56:16-46
@ ./node_modules/web3-core/lib/index.js 23:23-58
@ ./node_modules/web3/lib/index.js 32:11-31
@ ./src/pages/Profile/index.js 11:0-24 19:14-18
@ ./src/routes/Router.js 10:0-39 32:17-24 46:17-24
@ ./src/App.js 6:0-37 12:35-41
@ ./src/index.js 8:0-24 17:37-40

SEE FIX HERE 👍

ISSUE RAISED HERE